* {
  margin: 0;
  padding: 0;
}
li {
  list-style: none;
}
body {
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
}
body ul {
  width: 300px;
  height: 300px;
  position: relative;
  transform: rotate(-45deg);
}
body ul li {
  width: 300px;
  height: 300px;
  background: pink;
  border-radius: 300px 0 300px 0;
  position: absolute;
  transition: transform 0.5s linear;
  transform-origin: left bottom;
  opacity: 0.5;
}
body ul:hover li:nth-child(1) {
  transform: rotate(-30deg)  ;
}
body ul:hover li:nth-child(2) {
  transform: rotate(-60deg)  ;
}
body ul:hover li:nth-child(3) {
  transform: rotate(-90deg)  ;
}
body ul:hover li:nth-child(4) {
  transform:   rotate(0);
}
body ul:hover li:nth-child(5) {
  transform:  rotate(30deg) ;
}
body ul:hover li:nth-child(6) {
  transform:  rotate(60deg) ;
}
body ul:hover li:nth-child(7) {
  transform:  rotate(90deg) ;
}
